Finding the Fourth Proportional to 10,254.77, 14,151.59 and 5,539.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,254.77 : 14,151.59 = 5,539.05 : x
2. Step 2: Convert to fraction form
   10,254.77/14,151.59 = 5,539.05/x
3. Step 3: Cross multiply
   10,254.77x = 14,151.59 × 5,539.05
4. Step 4: Simplify right side
   10,254.77x = 78,386,364.59
5. Step 5: Solve for x
   x = 78,386,364.59/10,254.77
6. Step 6: Final answer
   x = 7,643.89